ROCKVILLE, Md. , Sept. 9, 2024 /PRNewswire/ — NeoImmuneTech, Inc. (NIT or “NeoImmuneTech”), a global leader in T cell-based immunotherapy, will present interim results of the Phase 1b clinical trial (NIT-112) combining a CAR-T therapy with NT-I7 (efineptakin alfa) during the ‘Mini oral session 1: Haematological malignancies’ at the European Society for Medical Oncology (ESMO) in Barcelona, Spain, from September 13 to 17. These initial results present a promising approach to enhancing the potential of CAR-T therapies while maintaining a stable safety profile.
The NIT-112 clinical trial involves patients with Large B-cell Lymphoma (LBCL) who received CAR-T therapies such as Kymriah, Yescarta, or Breyanzi, followed by NT-I7 administration 21 days after CAR-T infusion. The trial aims to evaluate safety, tolerability, the recommended Phase 2 dose (RP2D), and the potential for NT-I7 to enhance CAR-T expansion, persistence and stemness.
Interim results show that at dose levels 4 and 5, which are considered mid-level doses (360, 480 µg/kg), NT-I7 demonstrated a stable safety profile. No cases of Cytokine Release Syndrome (CRS) or Immune Effector Cell-Associated Neurotoxicity Syndrome (ICANS), which are known as high-risk side effects of CAR-T therapies, were observed subsequent to NT-I7 administration. Only mild, manageable side effects (Grade 1-2), such as injection site erythema and swelling were observed in 6 out of 11 patients (54.5%). Overall, a strong safety profile was observed.
NT-I7 administration resulted in significant amplification of CAR-T cells, prolonged persistence and an increase in T cell stemness, characterized by a higher frequency of T cells with a stem-cell memory (Tscm) phenotype (CD45RA+CCR7+CD95+). The overall response rate (ORR) from the interim results was 81.1% (9 out of 11 patients), with 7 achieving a complete response (CR) and 2 achieving a partial response (PR). Kymriah is known to have an ORR of 52% in LBCL patients.
Dr Luke Oh, President and Chief Executive Officer of NeoImmuneTech, Inc., said: “We are thrilled by the preliminary results of study NIT-112 showing NT-I7’s ability to amplify CAR-T cells. This successful amplification of CAR-T cells is expected to translate into improved patient outcomes. NIT plans to actively pursue technology transfer related to the combination of NT-I7 with CAR-T therapies and we look forward to accelerating our discussions with the organizations already conducting preclinical studies combining NT-I7 with our own CAR-T technologies.”
- Title:Â Phase 1b study of NT-I7 (efineptakin alfa), a long-acting IL-7, post-CD19-directed CAR T cell therapy in diffuse large B-cell lymphoma (DLBCL)
- Presentation Number: 806MO
- Speakers: Armin Ghobadi (St. Louis, United States of America)
- Lecture Time: 15:05 – 15:10 (Fri, 2024. 09. 13)
- Session Name: Mini oral session 1: Hematological malignancies (ID 31)
- Room: Toledo Auditorium – Hall 3
NT-I7 (efineptakin alfa) (rhIL-7-hyFc)
NT-I7 (efineptakin alfa) is the only clinical-stage long-acting human IL-7 and is being developed in oncologic and immunologic indications, where T cell amplification and increased functionality may provide clinical benefit. IL-7 is a fundamental cytokine for naïve and memory T cell development and sustaining immune response to chronic antigens (as in cancer) or foreign antigens (as in infectious diseases). NT-I7 exhibits favorable PK/PD and safety profiles, making it an ideal combination partner. NT-I7 is being studied in multiple clinical trials in solid tumors and as vaccine adjuvant. Studies are being planned for testing in hematologic malignancies, additional solid tumors and other immunology-focused indications.